Basement water drainage system

Abstract

A two-piece ground water drainage conduit system for interior subterranean walls supported on a footing with a concrete floor having a peripheral edge supported on the footing. The conduit system includes a vertical wall portion that horizontally extends for disposition between the wall and the floor. This vertical wall portion is provided with a rear surface that has spacer protrusions for engagement with the wall to provide a narrow drainage passage therebetween and the vertical wall portion is dimensioned for extension above the floor. The second piece of the system consists of an independent horizontal conduit portion which is positioned adjacent and along the vertical wall portion under the floor periphery and the drain is provided with apertures therealong for admitting ground water from the vertical wall portion narrow drainage passage and from elsewhere. A layer of insulation is applied to the upper exterior surface of the horizontal conduit portion for disposition between the conduit portion and the floor whereby condensation is prevented from forming on the peripheral edges of the floor.

1 . A ground water drainage conduit system for an interior subterranean wall supported on a footing with a concrete floor having a peripheral edge supported on the footing, the conduit system comprising: 
 a vertical wall portion for disposition between the wall and the floor and having a rear surface with spacer protrusions for engagement with the wall whereby a narrow drainage passage is provided therebetween, and dimensioned for extension above the floor;    an independent horizontal elongate conduit portion for positioning adjacent and along said vertical wall portion and under the floor, and having apertures therealong for admitting ground water from said vertical wall portion narrow drainage passage and elsewhere; and    a layer of insulation on an upper exterior surface of said conduit portion for disposition between the conduit portion and the floor whereby condensation is prevented from forming on said floor.    
   
   
       2 . The conduit system of  claim 1  wherein said vertical wall portion is resting on the footing and disposed between said horizontal conduit portion and a base portion of the wall, said vertical wall portion having spaced apertures along a bottom edge thereof for passing ground water.  
   
   
       3 . The conduit systems of  claim 1  wherein said vertical wall portion rests on top of said horizontal conduit portion.  
   
   
       4 . The conduit system of  claim 3  including spacer protrusions on the wall side of said horizontal conduit portion for engagement with the wall whereby a narrow drainage passage is provided therebetween.  
   
   
       5 . The conduit system of  claim 1  wherein said horizontal conduit portion is basically rectangular in cross section with the longer conduit walls thereof running horizontally, and having two diagonally opposed corners thereof chamfered with said apertures in both of said chamfered corners.  
   
   
       6 . The conduit system of  claim 5  including spacer protrusions extending from an exterior vertical side surface of said conduit portion.  
   
   
       7 . The conduit system of  claim 5  wherein said insulation layer is adhered to said upper exterior surface.